Psychological Symptom Analyzer (PSA) is an iPhone application designed to assist in diagnosing mental disorders in a novel way. By selecting symptoms and initiating the Analyzer process, users can receive potential mental disorder diagnoses based on the chosen symptoms. The app provides detailed criteria requirements for accurate diagnosis, referencing the ICD and DSM classifications.

For quick reference, users can utilize the library feature to search for specific mental disorders and view their criteria requirements instantly. Additionally, the app offers access to detailed information about disorders through the wiki button, enabling users to delve deeper into understanding various mental health conditions.